Virtual Bus Tour Overview Virtual Bus Tour Overview 2 Virtual Tour Stops • South County Road Trip • San Luis Reservoir • Pacheco Reservoir Expansion Project • Anderson Dam Retrofit Project • Q&A on San Luis/Pacheco/Anderson • Coyote Creek Project • Permanente Creek (McKelvey Park) Project • Q&A on Coyote and Permanente Creeks
• Break valleywater.org • Water Treatment Plants • Silicon Valley Advanced Water Purification Center • Q&A on Water Treat Plants/Purification Center • Wrap Up Tour Videos ‐ https://tinyurl.com/watertourvideos San Luis Reservoir
A comprehensive water system 4
Cindy Kao, Imported Water Manager valleywater.org Water Supply Division 5 valleywater.org San Luis Reservoir Trinity Lake Shasta Lake
State Water Project Central Valley Project Combined CVP & SWP Semitropic Water Storage District
Lake Oroville
Folsom Lake
New Melones Reservoir
O’Neill Forebay South Bay Aqueduct
Millerton Lake San Felipe Division
San Luis Reservoir
Semitropic Water Storage District
San Luis Low Point 9 valleywater.org San Luis Low Point Improvement Project 10 Valley Water is partnering with the US Bureau of Reclamation to explore utilizing expansion of the Pacheco Reservoir as a potential solution to the San Luis Reservoir Low Point Problem
• San Luis Reservoir is owned by Reclamation and jointly operated with DWR.
• The San Luis Low Point Improvement Project is a being conducted in parallel to the valleywater.org locally led Pacheco Reservoir Expansion Project effort being sponsored by Valley Water and the San Benito County Water District. • Paralleling the two projects provides multiple paths to potential WIIN Act funding.
10 Pacheco Reservoir
A comprehensive water system
13
Christopher Hakes, Deputy Operating Officer valleywater.org Dam Safety & Capital Delivery Division Ensuring Expansion Pacheco drinking supply
of Expanding
water safe, a more Reservoir
clean
reliable Project Storage
Supply
14 Local
and
valleywater.org A comprehensive water system
Time for a pulse check! Regulatory Agencies Federal State • FERC ‐ Federal Energy Regulatory • Division of Safety of Dams –DSOD • California Office of Historic Preservation Commission lead on design and (SHPO) environmental • California Department of Fish and Wildlife • USACE ‐ US Army Corps of • State Water Resources Control Board Engineers • Regional Water Quality Control Board • US Fish and Wildlife Service • County US Environmental Protection • Valley Habitat Agency Agency • Santa Clara County Parks • National Oceanic and Atmospheric Association ‐ NOAA Cities of: • National Marine Fisheries • Morgan Hill • Gilroy Service ‐ NMFS • San Jose Aging Infrastructure19
Anderson Reservoir Retrofit Project Ensuring a more reliable supply of safe, clean drinking water valleywater.org Questions? Time for a pulse check! Water Associate Damaris
Resources
Villalobos Engineer
Planning
and ‐ Galindo
Policy
Unit 22
valleywater.org Coyote
Creek
Flood
Protection
Project 23
valleywater.org Coyote Creek Watershed Description Project Location History of Coyote Creek ofCoyote Floods History 26
valleywater.org History of Coyote Creek ofCoyote Floods History 27
valleywater.org History of Coyote Creek ofCoyote Floods History 28
valleywater.org History of Coyote Creek ofCoyote Floods History 29
valleywater.org History of Coyote Creek ofCoyote Floods History 30
valleywater.org Flooding History: Santa Clara Street, January 1890 Clara Santa Flooding History: San Source:
Jose
Loomis,
Historical
P.,
Museum Signposts,
Association.
[Limited 1st
San
ed.].
Jose,
Calif.
74 p. 31
valleywater.org Flooding History: Monterey1911 7-9, Flooding History: Road, March 32
valleywater.org loigHsoy odl Avenue,January 27,1997 Nordale Flooding History:
60 South 17 th Street,
San José 33
valleywater.org
February 8,1998 February Wheel Golden Park, MobileHome Flooding History: Photographer
Richard
Wisdom,
San
Jose
Mercury
News 34
valleywater.org Flooding History: William 2017 Street Park,Flooding History: February 35
valleywater.org 2017 1939 Valley, Historical Source:
2002 Oakland Road Oakland Conditions: Historical Landscape California.
Grossinger,
Condition,
Robin,
Landscape
et
al.,
Change,
2006.
Coyote
and Restoration
Creek
Watershed
potential
Historical
in
the
Eastern
Ecology
Santa
Study:
Clara
36
valleywater.org 2017 1939 Valley, Historical Source:
2002 Watson Park Watson Conditions: Historical Landscape California.
Grossinger,
Condition,
Robin,
Landscape
et
al.,
Change,
2006.
Coyote
and Restoration
Creek
Watershed
potential
Historical
in
the
Eastern
Ecology
Santa
Study:
Clara
37
valleywater.org Historical Source: 1850 2002
Grossinger,
Condition, Robin,
Landscape
et
al.,
Change,
2006.
Coyote and Restoration
Creek
Watershed
potential
Historical 2017 1939 in the
Eastern
Ecology
Santa
Study:
Clara
Valley,
CA.
Park Park William Street 38
valleywater.org 2017 1939
Valley, Historical Source: Kelley Park Conditions: Historical Landscape 2002 California.
Grossinger,
Condition,
Robin,
Landscape
et
al.,
Change,
2006.
Coyote
and Restoration
Creek
Watershed
potential
Historical
in
the
Eastern
Ecology
Santa
Study:
Clara
39
valleywater.org Project Objective: Reduce Risk of Flooding from a flood event equivalent to the February 2017 event
Additional Project goals: . Stream Habitat Enhancement . Improve Water Quality . Provide for Public Access and Recreation . Minimize Need for Future Maintenance Activities Project Reaches 41
valleywater.org Flood Mitigation Strategies
Floodproofing Methods
Set‐ and Voluntary back Property repeatedly
Passive levees
floodwalls, barriers) properties
(permanent barriers elevation
purchase
flooding
berms of
42
valleywater.org Flood Mitigation Strategies 43
valleywater.org
Flood
Risk
Reduction
Work
Since
2017 44
valleywater.org
implementation Expedited Project Components,Status and Timeline Construction Design Planning Feasible Problem Conceptual opnns21 0821 0022 0222 2024 2023 2022 2021 2020 2019 2018 2017 Components
and
Alternatives Definition Study
Permitting Alternatives Project
Report
does
Timeline:
not
require
Assumes
extensive
project Here
permitting
alternative
selected
for
52
valleywater.org
Permanente Lotina Associate
Nishijima
Creek Engineer
Flood
Protection Project 53
valleywater.org Permanente Creek Flood Protection Project Water 101 Tour –May 20, 2020 Project cost recreational environmental approach channels using Mountain Minimize Address Provide Provide
a natural opportunities 1%
deteriorating
View long
benefits flood Objectives
‐term enhancements flood and protection
Los protection
maintenance
concrete for Altos
to
and
55
valleywater.org Permanente Project Elements A Floodwalls
C Channel widening Flood detention areas: B McKelvey Park
D Rancho San Antonio Park Construction Construction: Planning Project Funding McKelvey Rancho Permanente Safe Watershed San Clean
Source and Detention
Cost
Antonio
Creek
Contract Water Design:
Stream $76M
Channel
Detention Basin:
Fund
Stewardship
$13M
Amounts
$31M Improvements:
Basin: Fund $19M
$8M 57
valleywater.org
Project Channel Channel Floodwalls
Improvements Description
Widening 58
valleywater.org Floodwall 59
valleywater.org
Channel Widening 60
valleywater.org
Project Other soldier Weir Sunken 13 concrete McKelvey
&
park pile pump fields
Description amenities walls
retaining
station
Park
and 61
valleywater.org
Babe Ruth Field 62
valleywater.org
Little
League Field 63
valleywater.org
Weir
and
Pump Station 64
valleywater.org
Pedestrian Bridge 65
valleywater.org
Babe Ruth
Field
Building 66
valleywater.org
Little
League Field
Building 67
valleywater.org
Community
Building 68
valleywater.org
Mini Park
SafrPark) (Shaefer 69
valleywater.org
Project Rancho
Detention Maintenance Restroom/Leach Planting Parking
Description
San
Lot Antonio Basins Bridge Field 71
valleywater.org Inlet
Structure
and
South Basin 72
valleywater.org North Basin
and
New
Parking
Lot 73
valleywater.org Questions? Time for a quick break! Time for a pulse check! Safe, Clean Water
Water Treatment Plants A comprehensive water system
80
Steve Twitchell, Plant Supervisor valleywater.org Rinconada Water Treatment Plant Disinfection (Rinconada after improvements)
Pre‐Ozone (Raw Water Ozonation) Removing particles and other solids from the water
Flocculation Solids clump together Sedimentation Clumps sink and removed Clarifier tanks Disinfection (Santa Teresa and Penitencia)
Intermediate Ozonation Filtration
Removing microscopic particles Water Treatment Process Overview
Pre‐Ozone/Raw Water Ozonation A comprehensive water system
88
KJ Scott, Public Information Rep.
Silicon Valley Advanced valleywater.org Water Purification Center Purifying Water for a Sustainable Tomorrow
Uses recycled water and is good for the environment
Provides a drought‐ resistant water supply
Uses state‐of‐the‐art purification processes
Speeds up nature’s process Pre‐Treatment: Intake Pumps and Autostrainer
Intake Pumps –40 PSI Auto‐Strainers Microfiltration
“Outside‐In” membrane filtration
.1 micron pore size, or 3,000x smaller human hair
Organic and inorganic contaminants stay in vessel
Backwash removes contaminants Inter‐process Tank and RO Transfer Pumps
• 225,000 gallon tank, ½ size of Olympic pool
• Backwash water for microfiltration
• Anti‐scaling agent to prevent mineral buildup Reverse Osmosis Feed Pumps
3x450 horsepower pumps
130‐140 psi
$800,000 electricity per year
SVAWPC electricity from Shasta and Oroville Hydropower
Desalination uses RO but would need 1000‐1500 psi Reverse Osmosis
Membrane pores remove substances larger than water molecule
82% permeate/purified
18% concentrate with contaminants • salts • viruses and organic matter • pharmaceuticals • chemicals and pesticides
Bottle water and baby food production Ultraviolet Light Disinfection
• Ultraviolet disinfection for extra layer of safety
• High intensity UV light destroys organic compounds
• 20,000x more efficient than boiling water Finishing Tank and Enhanced Recycled Water
• 2,250,000 gallon tank (10x inter‐process tank)
• Stores advanced purified water before RWWF
• Enhanced recycled water safer for plants and better for industrial cooling systems Future of Advanced Purification & Water Reuse
• Countywide Water Reuse Master Plan
• 10% water reuse, 24,000 AFY
• Long term 45,000 AFY
• Indirect potable reuse
• Direct potable reuse
• Enhanced Recycled Water • Visit: www.purewater4u.org • Email: [email protected] • Valley Water Questions? Feedback survey & other questions? https://www.surveymonkey.com/r/8DJ8MT9